sda is original / source harddisk
sdb is new / replacement harddisk
md0 members are sda1 and sdb1
md1 members are sda2 and sdb2
After you have changed the hard disk /dev/sdb, boot the system.
----------------------------------------------------------------------------------------------------------------
If you use a disk and it is contained some raid info, you need to erase the metadata using this command.
mdadm --zero-superblock /dev/sdb
----------------------------------------------------------------------------------------------------------------sda is master/original drive
sdb new drive
after replace harddisk
boot the master harddisk. If bios have problem and cannot boot, boot rescuecd(you can download from search the web) via usb or CD.
after login and access terminal or command prompt.
copy partition table
sfdisk -d /dev/sda | sfdisk /dev/sdb
after that can verify use
fdisk -l
if ok then
add join harddisk to raid. add partition one by one
mdadm --manage /dev/md0 --add /dev/sdb1
mdadm --manage /dev/md1 --add /dev/sdb2
if md1 is big and boot up is using rescuecd, you can reboot pc using the new harddisk now due to md0 is boot partition and sync is completed. It can startup now.
After reboot, login to root and re-add md1 again using the last command.
God bless you!
沒有留言:
發佈留言